From 9a51dbca603267fd65a64b38e30a356affba38e3 Mon Sep 17 00:00:00 2001
From: Jeffy Chen <jeffy.chen@rock-chips.com>
Date: Thu, 7 Mar 2019 18:20:44 +0800
Subject: [PATCH 2/2] Support parsing <configfile>.d/*.conf

Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
---
 input-event-daemon.c | 69 ++++++++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 61 insertions(+), 8 deletions(-)

diff --git a/input-event-daemon.c b/input-event-daemon.c
index 2a7b527..a324382 100644
--- a/input-event-daemon.c
+++ b/input-event-daemon.c
@@ -4,6 +4,7 @@
 #include <unistd.h>
 
 #include <ctype.h>
+#include <dirent.h>
 #include <getopt.h>
 #include <fcntl.h>
 #include <errno.h>
@@ -11,12 +12,15 @@
 
 #include <sys/wait.h>
 #include <sys/select.h>
+#include <sys/stat.h>
+#include <sys/types.h>
 
 #include <linux/input.h>
 
 #include "input-event-daemon.h"
 #include "input-event-table.h"
 
+#define DEFAULT_CONFIGURE_FILE "/etc/input-event-daemon.conf";
 
 static int key_event_compare(const key_event_t *a, const key_event_t *b) {
     int i, r_cmp;
@@ -385,7 +389,7 @@ static void input_parse_event(struct input_event *event, const char *src) {
 }
 
 
-void config_parse_file() {
+void config_parse_file(const char *configfile) {
     FILE *config_fd;
     char buffer[512], *line;
     char *section = NULL;
@@ -394,9 +398,13 @@ void config_parse_file() {
     int line_num = 0;
     int listen_len = 0;
 
-    if((config_fd = fopen(conf.configfile, "r")) == NULL) {
+    if(conf.verbose) {
+        fprintf(stderr, PROGRAM": Start parsing %s...\n", configfile);
+    }
+
+    if((config_fd = fopen(configfile, "r")) == NULL) {
         fprintf(stderr, PROGRAM": fopen(%s): %s\n",
-            conf.configfile, strerror(errno));
+            configfile, strerror(errno));
         exit(EXIT_FAILURE);
     }
 
@@ -461,7 +469,7 @@ void config_parse_file() {
         print_error:
         if(error != NULL) {
             fprintf(stderr, PROGRAM": %s (%s:%d)\n",
-                error, conf.configfile, line_num);
+                error, configfile, line_num);
         }
 
 
@@ -483,6 +491,46 @@ void config_parse_file() {
     fclose(config_fd);
 }
 
+//Base on triggerhappy's trigger.c
+static int accept_configure_file(const struct dirent *entry) {
+    const char *suffix = ".conf";
+    const char *name = entry->d_name;
+    char *end = strstr( name, suffix );
+    if ( end && end[ strlen(suffix) ] == '\0' ) {
+        return 1;
+    } else {
+        return 0;
+    }
+}
+
+//Base on triggerhappy's trigger.c
+void config_parse_dir(const char *path) {
+    struct stat sb;
+    struct dirent **namelist;
+    int n;
+
+    if (stat(path, &sb) < 0 || !S_ISDIR(sb.st_mode))
+        return;
+
+    n = scandir(path, &namelist, accept_configure_file, alphasort);
+    if ( n < 0)
+        return;
+
+    while (n--) {
+        struct stat sf;
+        char *file = namelist[n]->d_name;
+        char *sep = "/";
+        char fpath[strlen(path)+strlen(sep)+strlen(file) + 1];
+        strcpy(fpath, path);
+        strcat(fpath, sep);
+        strcat(fpath, file);
+        if (stat(fpath, &sf) != -1 && S_ISREG(sf.st_mode))
+            config_parse_file(fpath);
+        free(namelist[n]);
+    }
+    free(namelist);
+}
+
 static const char *config_key_event(char *shortcut, char *exec) {
     int i;
     char *code, *modifier;
@@ -619,8 +667,6 @@ static char *config_trim_string(char *str) {
 void daemon_init() {
     int i;
 
-    conf.configfile  = "/etc/input-event-daemon.conf";
-
     conf.monitor     = 0;
     conf.verbose     = 0;
     conf.daemon      = 1;
@@ -814,6 +860,7 @@ static void daemon_print_version() {
 }
 
 int main(int argc, char *argv[]) {
+    const char *configfile = DEFAULT_CONFIGURE_FILE;
     int result, arguments = 0, listen_len = 0;
     static const struct option long_options[] = {
         { "monitor",   no_argument,       0, 'm' },
@@ -859,7 +906,7 @@ int main(int argc, char *argv[]) {
                 return EXIT_SUCCESS;
                 break;
             case 'c': /* config */
-                conf.configfile = optarg;
+                configfile = optarg;
                 break;
             case 'v': /* verbose */
                 conf.verbose = 1;
@@ -891,7 +938,13 @@ int main(int argc, char *argv[]) {
         if (!conf.listen[0])
             input_open_all_listener();
     } else {
-        config_parse_file();
+        char path[strlen(configfile) + 3];
+
+        config_parse_file(configfile);
+
+        strcpy(path, configfile);
+        strcat(path, ".d");
+        config_parse_dir(path);
     }
 
     daemon_start_listener();
-- 
2.11.0